Study on the Soil Spatial Variability of Ulmus pumila Open Forest in Horqin Sandy Land
SHI Yu-fei, JIN Yong-huan, JIN Lan-shu, SONG Zhu-fu
Arid Zone Research . 2015, (5): 897 -902 .  DOI: 10.13866/j.azr.2015.05.10